Programmable time-domain digital-coding metasurface for non-linear harmonic manipulation and new wireless communication systems

By Jie Zhao, Xi Yang, Jun Yan Dai, Qiang Cheng, Xiang Li, Ning Hua Qi, J. Ke, Guo Dong Bai, Shuo Liu, Shi Jin and 2 more. National Science Review, 2018

441 citations recorded by the source corpus.

Abstract Optical non-linear phenomena are typically observed in natural materials interacting with light at high intensities, and they benefit a diverse range of applications from communication to sensing. However, controlling harmonic conversion with high efficiency and flexibility remains a major issue in modern optical and radio-frequency systems. Here, we introduce a dynamic time-domain digital-coding metasurface that enables efficient manipulation of spectral harmonic distribution. By dynamically modulating the local phase of the surface reflectivity, we achieve accurate control of different harmonics in a highly programmable and dynamic fashion, enabling unusual responses, such as velocity illusion. As a relevant application, we propose and realize a novel architecture for wireless communication systems based on the time-domain digital-coding metasurface, which largely simplifies the architecture of modern communication systems, at the same time yielding excellent performance for real-time signal transmission. The presented work, from new concept to new system, opens new pathways in the application of metamaterials to practical technology.

Subfields: Aerospace Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/0a6b6450a13f862f504454cdb218007cc1b74b7b

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In Aerospace Engineering

In Atomic and Molecular Physics, and Optics

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Citations in the corpus

Large Intelligent Surface-Assisted Wireless Communication Exploiting Statistical CSI (2018, background): “Modern LIS includes reprogrammable metasurface, which has been suggested to replace the radio frequency module and reform the wireless communication architecture [4], [5].”
MIMO Transmission Through Reconfigurable Intelligent Surface: System Design, Analysis, and Implementation (2019, methodology): “In [23], an RIS-based binary frequency shift-keying (BFSK) transmitter with a simplified architecture was proposed.”
Phase-Induced Frequency Conversion and Doppler Effect With Time-Modulated Metasurfaces (2020, methodology): “In [52], a metasurface with a low number of discrete phase states for the reflection coefficient has been recently used to excite”